Riv1t, Planar Traveler

+1: Create a Bolt token(A colorless artifact token with "Sacrifice this token: it deals 2 damage to any target.")
-2: Riv1t deals damage equal to the number of artifacts you control to any target. Draw a card if a permanent was destroyed this way.
-7: You get an emblem with "At the start of your end step, make 3 Bolt tokens."